Let’s experiment with the OpenCV 4 library in real-time face recognition and smile detection project. In the article “Home automation with OpenCV 4” we have introduced the OpenCV 4 library for Raspberry Pi, which represents a...

Let’s find out how to make a phone switchboard equipped with all the most advanced features, by using a Raspberry Pi as hardware and Asterisk as software. Part one. The term VoIP, which means “Voice over...